TEXTURE GENERATION SYSTEM

A texture generation system includes a display terminal for displaying a three-dimensional map, a map database, a matrix, and a texture generating unit. The map database includes a three-dimensional model representing a three-dimensional shape of a feature with at least one polygon and a plurality of types of unit textures. Each pixel of the matrix stores a control value for controlling selection of the unit texture. The texture generating unit generates a texture for the polygon as an array of a plurality of unit textures with at least two types, by associating each position of the array with a pixel of the matrix, selecting one of the plurality of types of the unit textures for each position based on the control value at the pixel associated therewith, and arranging and pasting the selected unit texture onto each position, thereby providing the array of the unit textures on the polygon.